[meld] filediff.ui: Update dialog action area layout for new GTK+ (bgo#756390)

[Kai Willadsen <kaiw src gnome org>]

commit b63a968570733144ef6aa3c4161a75f90ca6b6f4
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Mon Oct 12 07:14:35 2015 +1000

    filediff.ui: Update dialog action area layout for new GTK+ (bgo#756390)
    
    The now-default Adwaita styling looks really bad if you don't have your
    dialog layout exactly what constitutes the new normal.

 data/ui/filediff.ui |    9 ++++-----
 1 files changed, 4 insertions(+), 5 deletions(-)
---
diff --git a/data/ui/filediff.ui b/data/ui/filediff.ui
index 4e5d8cc..f23f3f2 100644
--- a/data/ui/filediff.ui
+++ b/data/ui/filediff.ui
@@ -181,7 +181,6 @@
   </object>
   <object class="GtkMessageDialog" id="check_save_dialog">
     <property name="can_focus">False</property>
-    <property name="border_width">5</property>
     <property name="type_hint">dialog</property>
     <property name="skip_taskbar_hint">True</property>
     <property name="message_type">warning</property>
@@ -197,7 +196,7 @@
           <object class="GtkButtonBox" id="dialog-action_area1">
             <property name="visible">True</property>
             <property name="can_focus">False</property>
-            <property name="layout_style">end</property>
+            <property name="layout_style">expand</property>
             <child>
               <object class="GtkButton" id="close_button">
                 <property name="label" translatable="yes">Close _without Saving</property>
@@ -208,7 +207,7 @@
               </object>
               <packing>
                 <property name="expand">False</property>
-                <property name="fill">False</property>
+                <property name="fill">True</property>
                 <property name="position">0</property>
               </packing>
             </child>
@@ -222,7 +221,7 @@
               </object>
               <packing>
                 <property name="expand">False</property>
-                <property name="fill">False</property>
+                <property name="fill">True</property>
                 <property name="position">1</property>
               </packing>
             </child>
@@ -236,7 +235,7 @@
               </object>
               <packing>
                 <property name="expand">False</property>
-                <property name="fill">False</property>
+                <property name="fill">True</property>
                 <property name="position">2</property>
               </packing>
             </child>